Q. 74.3( 293 Votes )
A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required?
Answer :
Given: Radius of cylindrical tank, r = 7m
Height of cylindrical tank, h =3m
The figure of the question is:
The total surface area of cylindrical tank, S = 2 π r( h + r) ............(1)
Putting the values of r and h in equation (1), we get,
S = 2 ×(22/7)× 7(7 + 3)
S = 2 × (22/7) × 7(10)
S = 2 × 22× 10
S = 440 m2
The total surface area of the cylinder is 440 m2
∴ 440 m2 of sheet of metal is required.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
PREVIOUSDescribe how the two figures at the right are alike and how they are different. Which box has larger lateral surface area?NEXTThe lateral surface area of a hollow cylinder is 4224 cm2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet?
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
